invalid problem set
Problem 6327
Created 2005-04-15
Source Yoon Hyun-suk vs Lee Changho 1992-04-20
Rating
Difficulty 9 dan
Average Solve Time 40 secs
User Attempts
73 / 948
Solve Ratio Rating 4 dan
rating history
White to live and kill black. I may have forgotten some variations. I'll add them, if you tell me about it. Please do not try to kill black directly. Just live with the white group. See also problem 6342
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[19]KM[0.50]
PW[White]PB[Black]AW[pl][dm][jm][mm][pm][dn][gn][hn][in][mn][co][do][fo][ho][io][lo][mo][oo][bp][dp][fp][ip][jp][eq][mq][nq][er][fr][gr][lr][mr]AB[ci][qk][dl][ql][cm][em][gm][qm][bn][cn][fn][ln][pn][bo][go][jo][ko][po][cp][gp][kp][lp][pp][cq][fq][gq][hq][iq][jq][lq][dr][hr][kr][pr]PL[W]
(;W[cr]CR[cr]
;B[br]CR[br]
(;W[cs]CR[cs]
;B[ds]CR[ds]
(;W[dq]CR[dq]
;B[bs]CR[bs]
(;W[en]CR[en]
;B[fm]CR[fm]
(;W[cr]CR[cr]
;B[bq]CR[bq]
;W[es]CR[es]
;B[cs]CR[cs]
;W[gs]CR[gs]C[RIGHT])
(;W[es]CR[es]
;B[cr]CR[cr]
;W[gs]CR[gs]C[RIGHT]))
(;W[es]CR[es]
;B[eo]CR[eo]
;W[ep]CR[ep]
;B[en]CR[en]
(;W[cr]CR[cr]
;B[bq]CR[bq]
;W[cs]CR[cs]
;B[gs]CR[gs])
(;W[bq]CR[bq]
;B[cr]CR[cr])))
(;W[en]CR[en]
;B[fm]CR[fm]
(;W[dq]CR[dq]
;B[bs]CR[bs]
(;W[cr]CR[cr]
;B[bq]CR[bq]
;W[es]CR[es]
;B[cs]CR[cs]
;W[gs]CR[gs]C[RIGHT])
(;W[es]CR[es]
;B[gs]CR[gs]
(;W[bq]CR[bq]
;B[cr]CR[cr])
(;W[cr]CR[cr]
;B[bq]CR[bq]
;W[cs]CR[cs]C[RIGHT])))
(;W[es]CR[es]
;B[bs]CR[bs]
(;W[gs]CR[gs]
;B[ep]CR[ep]
(;W[eo]CR[eo]
;B[dq]CR[dq])
(;W[dq]CR[dq]
;B[eo]CR[eo]C[Black escapes]))
(;W[dq]CR[dq]
;B[cr]CR[cr]
;W[gs]CR[gs]C[RIGHT])))
(;W[es]CR[es]
;B[bs]CR[bs]
(;W[en]CR[en]
;B[fm]CR[fm]
;W[dq]CR[dq]
;B[cr]CR[cr]
;W[gs]CR[gs]C[RIGHT])
(;W[dq]CR[dq]
;B[eo]CR[eo]
(;W[ep]CR[ep]
;B[en]CR[en]
(;W[cr]CR[cr]
;B[bq]CR[bq]
;W[cs]CR[cs]
;B[gs]CR[gs])
(;W[bq]CR[bq]
;B[cr]CR[cr]))
(;W[cr]CR[cr]
;B[ep]CR[ep]C[Black escapes])))
(;W[bq]CR[bq]
;B[bs]CR[bs]
(;W[en]CR[en]
;B[fm]CR[fm]
;W[es]CR[es]
;B[ep]CR[ep]
(;W[eo]CR[eo]
;B[dq]CR[dq]
;W[ep]CR[ep])
(;W[dq]CR[dq]
;B[eo]CR[eo]C[Black escapes]))
(;W[dq]CR[dq]
;B[cr]CR[cr])
(;W[cr]CR[cr]
;B[ep]CR[ep]
(;W[dq]CR[dq]
;B[eo]CR[eo]C[Black escapes])
(;W[eo]CR[eo]
;B[dq]CR[dq]))))
(;W[bq]CR[bq]
;B[cs]CR[cs]
;W[dq]CR[dq]
;B[cr]CR[cr]
(;W[en]CR[en]
;B[fm]CR[fm]
(;W[es]CR[es]
;B[gs]CR[gs])
(;W[gs]CR[gs]
;B[es]CR[es]))
(;W[es]CR[es]
;B[gs]CR[gs])
(;W[gs]CR[gs]
;B[es]CR[es]))
(;W[en]CR[en]
;B[fm]CR[fm]
;W[cs]CR[cs]
;B[ep]CR[ep]
(;W[eo]CR[eo]
;B[dq]CR[dq]
;W[ep]CR[ep]
;B[bq]CR[bq])
(;W[dq]CR[dq]
;B[eo]CR[eo]C[Black escapes,])))
(;W[dq]CR[dq]
;B[cr]CR[cr]
(;W[en]CR[en]
;B[fm]CR[fm]
(;W[es]CR[es]
;B[gs]CR[gs])
(;W[gs]CR[gs]
;B[es]CR[es]))
(;W[es]CR[es]
;B[gs]CR[gs])
(;W[gs]CR[gs]
;B[es]CR[es]))
(;W[en]CR[en]
;B[fm]CR[fm]
;W[cr]CR[cr]
;B[ep]CR[ep]
(;W[dq]CR[dq]
;B[eo]CR[eo]C[Black escapes])
(;W[eo]CR[eo]
;B[dq]CR[dq]
;W[ep]CR[ep]
;B[bq]CR[bq]))
(;W[es]CR[es]
;B[cr]CR[cr]
(;W[en]CR[en]
;B[fm]CR[fm]
;W[gs]CR[gs]
;B[ep]CR[ep]
;W[eo]CR[eo]
;B[dq]CR[dq])
(;W[gs]CR[gs]
;B[ep]CR[ep]
;W[eo]CR[eo]
;B[dq]CR[dq]))
(;W[gs]CR[gs]
;B[ep]CR[ep]
;W[eo]CR[eo]
;B[dq]CR[dq])
(;W[ds]CR[ds]
;B[cr]CR[cr])
(;W[br]CR[br]
;B[bq]CR[bq]
(;W[es]CR[es]
;B[ep]CR[ep]
;W[eo]CR[eo]
;B[dq]CR[dq])
(;W[cr]CR[cr]
;B[dq]CR[dq]
;W[ds]CR[ds]
;B[ap]CR[ap]
(;W[ar]CR[ar]
;B[ep]CR[ep]
;W[eo]CR[eo])
(;W[es]CR[es]
;B[gs]CR[gs]
;W[ar]CR[ar]
;B[ep]CR[ep])
(;W[cs]CR[cs]
;B[ep]CR[ep]
;W[eo]CR[eo]))
(;W[en]CR[en]
;B[fm]CR[fm]
(;W[cr]CR[cr]
;B[dq]CR[dq]
(;W[ep]CR[ep]
;B[ds]CR[ds])
(;W[ds]CR[ds]
;B[ap]CR[ap]
(;W[ep]CR[ep]
;B[cs]CR[cs]
(;W[es]CR[es]
;B[gs]CR[gs])
(;W[bs]CR[bs]
;B[ar]CR[ar]))
(;W[ar]CR[ar]
;B[ep]CR[ep])))
(;W[dq]CR[dq]
;B[cr]CR[cr]
(;W[es]CR[es]
;B[gs]CR[gs])
(;W[gs]CR[gs]
;B[es]CR[es]))
(;W[ds]CR[ds]
;B[ep]CR[ep]
(;W[eo]CR[eo]
;B[dq]CR[dq]
;W[ep]CR[ep])
(;W[dq]CR[dq]
;B[eo]CR[eo]C[Black escapes])))))
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